Facts of C Programming Language
Facts of C Programming Language
C的一些掌故
(英文原文:http://www.programmingfacts.com/2009/12/01/facts-of-c-programming-language/)
C programming language was developed in 1972 by Dennis Ritchie and Brian Kernighan at the Bell Telephone Laboratories (AT&T Bell Laboratories) for use with the Unix operating system for programming computer operating systems. C is a procedural oriented programming language.
C语言是在1972年由贝尔实验室的Dennis Ritchie和Brian Kernighan为开发操作系统，为Unix提供编程语言而实现的。它是面向过程的编程语言。
C was designed as a minimalist language to be used in writing operating systems for minicomputers, which had very limited memories compared with the mainframe computers of the period
C最初主要是用来为微机编写操作系统，因而被设计的“小巧”而又富于抽象力，因为和当时的大型机相比，微机的内存非常有限。
Also C was designed for implementing system software. Although C was designed for implementing system software,it is also widely used for developing portable application software.
当然，C也被设计成适于编写系统软件。虽然C是系统级编程语言，但在可移植应用软件开发领域，到处都可以看到它的身影。
The initial development of C was devised during 1969–73, alongside the early development of the UNIX operating system. It was based on CPL (Combined Programming Language), which had been first condensed into the B programming language and later on it was called as computer programming language by Ken Thompson, an American computer scientist and a colleague of Ritchie. Ritchie rewrote and restored features from BCPL to create C-Programming Language, rewrite the development of the Unix operating system in C language.
C的最初开发与实现是和UNIX系统一起进行的，时间是1969到1973年。C语言基于CPL（混合编程语言，译注：Combined Programming Language是早期的一种计算机编程语言，由剑桥大学数学实验室和伦敦大学计算机研究室联合开发的）,人们将CPL语言的特性融入到B语言中（译注：即后来的BCLP语言），美国计算机科学家Ken Thompson后来称B为计算机编程语言；Ken�
相关文档：
#include <stdio.h>
exec sql begin declare section;
char userid[11]="hr/oracle";
char std_name[10];
int std_number;
int dept_number;
exec sql end declare section;
char temp[3];
void sql_error();
#include <sqlca.h>
main()
{
std_number=060415;
exec sql whenever sqlerror do sql_ ......
在ANSI C中，对文件的操作分为两种方式，即流式文件操作和I/O文件操作，下面就分别介绍之。
一、流式文件操作
这种方式的文件操作有一个重要的结构FILE，FILE在stdio.h中定义如下：
typedef struct {
int level; /* fill/empty level of buffer */
unsigned flags; /* File status flags */
char fd; /* File des ......
[摘要]可扩展标志语言（简称XML）在实现信息标准化、信息的交流与共享上有其独特的技术优势，因此它受到了广泛的重视。全文首先提出了基于XML的三层Client/Server模型；然后对其从数据获取、传输至显示以及外部处理的应用进行分析；接着以图书资料管理系统为例，说明了其具体的实现；最后对基于XML的三层C/S模型在信息标准� ......
本文摘自I18nGuy
主页的一篇内容，原文地址：http://www.i18nguy.com/unicode/c-unicode.zh-CN.html
这份文档简要的说明了如何修改你的C/C++代码使之支持Unicode。在这里并不准备
解释太多相关的技术细节并且我得假定你已经基本熟悉Microsoft支持Unicode的方式。
它的主要目的是方便你查询相关的数据类型和函数，以及修 ......
在<TCHAR.h>头文件里，有这么一组操作文件的宏
#define _tfdopen _wfdopen
#define _tfsopen _wfsopen
#define _tfopen _wfope ......
